Justine, I don't think you should feel badly about this. When I was starting out in 2009, as long as the trend was downward (which yours is), nobody would switch you or mark you as a "failure" at this point. The worst they would call you was "turtle." My onc at that time certainly noted that I "wasn't quite there yet," but he didn't freak out and scare me or anything, and I just steadily kept going down. I got to MMR at about 22 months. Different onc, different drug, cut to the chase all these years later - it has been a slow but steady downward march to <0.01% IS. For me, who knows, this may be as good as it ever gets and, I think, that's probably fine. Anyway, if I were you I'd try not to worry and just be patient for some more months. You're in a very good place right now even if it didn't change. Just sit tight - it'll happen. (Unless you'd LIKE to switch for SE reasons - you certainly could do that.) It's just that, since they changed the Guidelines, peoples' expectations and fears have come into play, and some of us oldsters are around to show you that turtles get there just fine.